Results 51 to 60 of about 749 (182)

Marketization in Public Purchasing as a Route to Business Corporations' Institutional Power: The Case of Outsourcing Social Services in Israel

Policy Studies Journal, Volume 54, Issue 3, August 2026.
ABSTRACT What are the conditions under which business corporations expand their institutional power? This paper argues that institutional power is affected by the architecture of the “acquisition regime”—the set of formal (and informal) rules that govern how states purchase public services.
Reut Marciano, Shir Gal
wiley   +1 more source

Influence of Spatial Variability of Tensile Strength on Seismic Cracking of Gravity Dam

工程科学与技术, 2019
Since the uneven construction quality and the inherent heterogeneity of concrete, the material properties of the gravity dam have spatial variability. The spatial variability of the concrete strength parameters will affect the seismic performance of dams,
Zefa LI, Zhenyu WU, Xiang LU, Liang PEI, Zhe YANG   +4 more
doaj  

A Probabilistic Model for Evaluation of the Dynamic Behavior of a Concrete Gravity Dam considering the Fluid-Structure Interaction

Advances in Civil Engineering, 2023
Regarding the importance of the interaction effect in the dynamic behavior of a concrete dam and reservoir, the process of hydrodynamic wave propagation in the reservoir and its effects on the response of a concrete gravity dam are examined in this ...
Majid Pasbani Khiavi, Adel Ferdousi, Abdolrahman Moallemi Khiavi   +2 more
doaj   +1 more source

Time's Sentimental Tale: Operationalizing Plot Within the Narrative Policy Framework

Policy Studies Journal, Volume 54, Issue 3, August 2026.
ABSTRACT The Narrative Policy Framework (NPF) has proven to be a successful analytical tool for examining the role of narratives within the policy process; however, the analysis of plot is still understudied. This gap persists due to difficulty in developing valid and reliable measures of plot and a lack of plot operationalizations using longitudinal ...
Rachel McGovern, Crystal Soderman, Alex Osei‐Kojo, Michael D. Jones, Kristin L. Olofsson   +4 more
wiley   +1 more source

Field‐Validated Predictive Model for Strain Modulus of Dispersive Clay Stabilized With a Waste Calcium Composite for Sustainable Subgrade Design

Engineering Reports, Volume 8, Issue 7, July 2026.
A field‐validated predictive model accurately estimates the strain modulus of waste calcium composite‐stabilized dispersive clay. The model provides a reliable, sustainable, and cost‐effective tool for subgrade design, reducing dependence on extensive field testing while improving pavement performance.
Farhan Ali, Hassan Mujtaba, Khalid Farooq, Zubair Masoud   +3 more
wiley   +1 more source

Simulation of Hydraulic Fracture Failure in Concrete Gravity Dams Under Different Loads

Renmin Zhujiang
This study investigated the problem of hydraulic fracture propagation in concrete gravity dams. A fracture mechanics model for concrete was constructed, and cohesive force units were used to simulate the propagation of fractures.
WANG Yang, SUN Jinshan, WANG Gaohui, ZHENG Jiawei, LI Yongzhen   +4 more
doaj   +2 more sources

Design and Modal Analysis of Gravity Dams by Ansys Parametric Design Language

Walailak Journal of Science and Technology, 2014
For find the optimal shape of concrete gravity dams including dam-water-foundation rock interaction, model of 2-dimensional finite elements that include the dam, reservoir and foundation is provided using the finite element software ANSYS in the most ...
Shiva KHOSRAVI, Mohammad Mehdi HEYDARI
doaj   +1 more source

I'll Be Dammed: Efficiency and Cost‐Analysis of a Rehabilitated Prehispanic Dam in the Andes

Geoarchaeology, Volume 41, Issue 4, July/August 2026.
ABSTRACT Within archaeology there is a growing shift away from the purely aesthetic towards making the past relevant to present and future needs and demands. The Past Water Futures project charts the impact of ancient dam rehabilitation on climate change‐induced water scarcity in the North Central Andes.
Kevin Lane, Ricardo Flores‐Marquez, Rodrigo J. Puga‐Calderón, Pedro Gonzalez, Mario Advíncula, Alexander Herrera   +5 more
wiley   +1 more source

The Effectiveness of Nature‐Based Solutions in Mitigating Salt Intrusion in Estuaries: A Review

Water Resources Research, Volume 62, Issue 7, July 2026.
Abstract Climate change and anthropogenic activities are enhancing salt intrusion in many estuaries, which reduces the supply of drinking water as well as freshwater for agricultural and industrial uses and can further cause severe economic losses. Nature‐based solutions emerge as sustainable and ecologically sound strategies to mitigate salt intrusion
Weiqiu Chen, Bas W. Borsje, Pieter C. Roos, Gijs G. Hendrickx, Rutger W. A. Siemes, Wessel M. van der Sande, Jesse Bootsma, Eleonora Saccon, Floor P. Bakker, Suzanne J. M. H. Hulscher   +9 more
wiley   +1 more source

Stratigraphy Preserved on the Jezero Crater Rim Reveals Repeated Impacts on Early Mars

Journal of Geophysical Research: Planets, Volume 131, Issue 7, July 2026.
Abstract The outer slopes of the western Jezero crater rim are hypothesized to expose sections of Early‐ to Pre‐Noachian crust uplifted by the Jezero impact, providing an excellent opportunity to investigate the earliest geologic processes active on terrestrial planets.
Alexander J. Jones, Sanjeev Gupta, Robert Barnes, Samantha Gwizd, Kathryn M. Stack, Briony Horgan, Sanna Alwmark, Athanasios Klidaras, Eleni Ravanis, Sarah Fagents, Gerhard Paar, James F. Bell III, Justin N. Maki, Margaret Deahn, Candice Bedford, Nicolas Mangold, Michael Bramble, Justin I. Simon, Lisa Mayhew, Cathy Quantin‐Nataf, Larry Crumpler, Christoph Traxler, Chris Herd, Olivier Beyssac, Nicolas Randazzo, Uni Árting, Roger C. Wiens, Kenneth A. Farley   +27 more
wiley   +1 more source